The
Taj Mahal is situated more than 900 ft. (275 m.) away from the entrance
at the opposite end of the garden. Towering almost 200 ft. (76m.) in
height, the tomb stands on its own marble plinth, which rests on a red
sandstone platform that serves to level the land as it slopes to the
river. Four tall minarets rise up from the corners of the white marble
plinth. They taper to a majestic height of 138 ft. and are crowned with
eight windowed cupolas. elegantly accent the central structure, framing
the space like the mounting of a jewel.

The marble mausoleum is square in plan with chamfered corners. Each
facade of the tomb is composed of a grand iwan framed by bands of
calligraphy. The doorways inside these iwans are also adorned with
calligraphy. The iwan is flanked on both sides by small double arches
one over the other. They are rectangular while the arched alcoves of
equal size at the angles of the tomb are semi-octagonal. Each section in
the facade is well demarked on both sides by attached pilasters which
rising from the plinth level of the tomb rise above the frieze and are
crowned by beautiful pinnacles with lotus buds and finials. The
pinnacles ornament the superstructure and help along with the other
features to break the skyline gracefully.

The Taj Mahal is entered through the portal on the south side. Inside,
two stories of eight rooms (four rectangular rooms on the sides and four
octagonal small rooms at the corners) surround a central chamber. These
rooms were originally used for the mullahs to chant the Koran and for
Musicians who played soft Indians and Persian melodies. In this nine
part plan, the visitor can circumambulate through the subsidiary rooms
on each floor since they are interconnected. The central chamber is
octagonal, and in the centre is the tomb of the queen and to one side is
the casket of the emperor. The hall is 80 ft. high from the pavement to
the soffit of the interior dome. This makes sound echo.

A bulbous white double-dome majestically crowns the Taj. The huge dome
emphasises the monumentality of the structure as its pear shaped form
sits on a tall drum. The height from the base of the drum to the top of
the finial is almost 145 ft. (44 m.). The double domes fulfils various
purposes. Besides providing a suitable and proportionate ceiling to the
interior hall, it enabled the builder to raise the height of the outer
dome as much as he desired in order to present a lofty and imposing
effect. The space within the two domes is hollow and the inner cell
reduces the weight of the dome. Four small kiosks clustered around the
dome reduce the severity of the vertical emphasis.